Doubt: Sir ...but product of glycolysis is pyruvate which undergoes oxidative phosphorylation in mitochondrial matrix....then why is the answer given is oxidation Chapter: Respiration in Plants - Subject: Botany - Course: NEET Biology Course

Doubt by Pooja

Sir ...but product of glycolysis is pyruvate which undergoes oxidative phosphorylation in mitochondrial matrix....then why is the answer given is oxidation

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Answer by Isha Agarwal

At the end of glycolysis, we have two pyruvate molecules that still contain lots of extractable energy. Pyruvate oxidation is the next step in capturing the remaining energy in the form of ATP although no ATP is made directly during pyruvate oxidation.

More detailed diagram of the mechanism of pyruvate oxidation.

1. A carboxyl group is removed from pyruvate and released as carbon dioxide.

2. The two-carbon molecule from the first step is oxidized, and NAD+ accepts the electrons to form NADH.

3. The oxidized two-carbon molecule, an acetyl group, is attached to Coenzyme A to form acetyl CoA.

Doubt by Pooja

Answers

Answer by Isha Agarwal

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